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<p>[QUOTE=&quot;Kentucky, post: 3193820, member: 33176&quot;]The main thing to remember when cleani.... conserving coins it that always assume you cannot reverse yourself and go slow.&nbsp; Drachms are fairly small coins and not the easiest to handle.&nbsp; For example a technique I have used with coins the size of a US quarter or larger is to put the coin in a sink where the stream of water will hit it directly and then subject it to a stream of the hottest water your tap can deliver.&nbsp; I have used distilled (or deionized) water for a rinse, but not particularly to soak a coin in it.&nbsp; If you use a plastic net (like some fruit comes packaged in) to keep the coin from going down the drain (it HAS happened to me), this is something you can try with pretty much no danger of damage.&nbsp; Silver is tricky to clean, but not as tricky as copper coins (including bronze and brass).&nbsp; </p><p><br /></p><p>I don&#039;t know about using EDTA, but I am a bit leery of it.&nbsp; The stuff with aluminum foil is OUT whether using sulfuric acid or sodium carbonate, I just don&#039;t trust it.&nbsp; There is a commercial dip that uses sulfuric acid and thiourea, but that is to strip toning and is most useful for uncirculated modern silver coins.&nbsp; Acetone can also be used to remove organic material and won&#039;t hurt the silver.</p><p><br /></p><p>I have used lemon juice and it does a pretty good job, except your coin looks to have some zits of some sort.&nbsp; </p><p><br /></p><p>Bottom line, if you want to do anything, soak for a day or so in tap water and then rinse with hot water having the coin protected from going down the drain.&nbsp; Try an overnight acetone (pure acetone and cover it to prevent evaporation) soak and repeat the hot tap water rinse.&nbsp; Pat dry.&nbsp; The only other thing you might like to try is some prodding of the encrustations with a sharp bamboo stick, but I leave that decision up to you.&nbsp; Whatever you do, go slowly, you can&#039;t go back.[/QUOTE]</p><p><br /></p>

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